Comparison of Somatogravic Illusions and Vestibular Autonomic Reaction Induced with Short Arm Centrifuge Exposure with Various Speeds
Song Xinliang
Gu Shaojiang
Zhou Yalei
Geng Yan
Xue Fei
Wang Jianliang
Sun Xiqing
Abstract：Objective To observe the effects and characteristics of somatogravic illusions and vestibular autonomic reaction induced by short arm centrifuge exposure,and to define the appropriate speed of short arm centrifuge for somatogravic illusion simulation training on the ground.Methods One hundred and five healthy pilots performed somatogravic illusion by SAC-Ⅲ short arm centrifuge with various speeds.And somatogravic illusions and vestibular autonomic reaction were compared.Results The somatogravic illusions,including forward torsion illusion,forward illusion and backward illusion,can be induced when the short arm centrifuge were acceleration of starting,uniform motion and deceleration of braking.And the expressions and characteristics of the somatogravic illusions were approximately the same,while the illusion strength was enhanced with the speed increase.The illusion induced rate of 37 r/min exposure was enhanced than the induced rates of 30r/min and 21 r/min exposure (P ＜0.01).And when 30 r/min and 21 r/min exposure,the illusion induced rates showed no significant difference (P ＞ 0.05).The scores of vestibular autonomic reaction under three kinds of speed increased with the speed increase,but there was no significant difference (P ＞ 0.05).Conclusions When the speed of centrifuge was 37 r/min,the induced rate of the somatogravic illusions was higher and the vestibular autonomic reaction was mild.Therefore,the 37 r/min exposure of short arm centrifuge was more appropriate for pilot somatogravic illusion simulation training on the ground.
Keywords：short-arm centrifugecentrifugationillusionvestibule
Publication Date：2017-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：4( 88-91 )